CN113606170A - Indoor transformer substation side wall fan noise reduction device - Google Patents
Indoor transformer substation side wall fan noise reduction device Download PDFInfo
- Publication number
- CN113606170A CN113606170A CN202110961602.3A CN202110961602A CN113606170A CN 113606170 A CN113606170 A CN 113606170A CN 202110961602 A CN202110961602 A CN 202110961602A CN 113606170 A CN113606170 A CN 113606170A
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- noise reduction
- side wall
- fan
- reduction device
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
- F04D27/001—Testing thereof; Determination or simulation of flow characteristics; Stall or surge detection, e.g. condition monitoring
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/002—Details, component parts, or accessories especially adapted for elastic fluid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/52—Casings; Connections of working fluid for axial pumps
- F04D29/54—Fluid-guiding means, e.g. diffusers
- F04D29/541—Specially adapted for elastic fluid pumps
- F04D29/545—Ducts
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/663—Sound attenuation
- F04D29/664—Sound attenuation by means of sound absorbing material
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/667—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps by influencing the flow pattern, e.g. suppression of turbulence
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/70—Suction grids; Strainers; Dust separation; Cleaning
- F04D29/701—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps
- F04D29/703—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps specially for fans, e.g. fan guards
Abstract
The invention discloses a noise reduction device for a fan on a side wall of an indoor transformer substation, aiming at reducing the influence of the fan on indoor and outdoor noise of a main transformer chamber and also considering the fire-fighting and smoke-discharging functions in an accident. Therefore, on one hand, the indoor substation side wall fan noise reduction device provided by the embodiment of the invention is installed in a substation, and comprises an exhaust port section, an air inlet noise reduction section, a fan chamber section and an air outlet noise reduction section, wherein gas flows through the exhaust port section, the air inlet noise reduction section, the fan chamber section and the air outlet noise reduction section in sequence, the air outlet noise reduction section is in butt joint with an exhaust port on the side wall of the substation, the substation is also provided with an electric air inlet shutter, silencers are arranged in the air inlet noise reduction section and the air outlet noise reduction section, an explosion-proof fan is arranged in the fan chamber section, a temperature sensor is arranged in the air outlet section, and the temperature sensor, the explosion-proof fan and the electric air inlet shutter are electrically connected with a control system.
Description
Technical Field
The invention belongs to the technical field of environmental engineering, and particularly relates to a noise reduction device for a side wall fan of an indoor substation.
Background
Along with the increase of the urban electricity utilization scale, the construction positions of electric power facilities such as transformer substations and energy storage stations are closer to the urban human environment. At present, urban power facilities are mainly arranged indoors, the influence of noise of main power equipment such as transformers and reactors on the surrounding environment can be effectively isolated, and meanwhile, a new noise problem can be brought. The main equipment has large heat productivity, so that a large number of ventilation and heat dissipation devices need to be arranged on the outer wall and the roof of an indoor electric facility, the devices can generate large noise and even cause the problem of standard exceeding of factory noise, and in recent years, too many disputes of citizens complaints caused by the noise of the heat dissipation devices occur in our provinces. The wall surface fan and the side wall fan are mainly adopted for ventilation and heat dissipation of indoor electric facilities, and most of the fans are axial flow fans. The common method for reducing the noise of the side wall fan is to add a silencer on the side wall fan, so that the noise emitted upwards by the side wall fan can be effectively reduced, but the influence of the side wall fan on the increase of the noise in the main transformer chamber cannot be eliminated, so that the noise transmitted through an air inlet of the main transformer chamber is increased, and the standard exceeding of the station boundary noise of a transformer substation is caused.
Disclosure of Invention
The invention mainly aims to provide a noise reduction device for a side wall fan of an indoor transformer substation, aiming at reducing the influence of the fan on indoor and outdoor noise of a main transformer chamber and also considering the fire-fighting and smoke-discharging functions in an accident.
Therefore, on one hand, the indoor substation side wall fan noise reduction device provided by the embodiment of the invention is installed in a substation, and comprises an exhaust port section, an air inlet noise reduction section, a fan chamber section and an air outlet noise reduction section, wherein gas flows through the exhaust port section, the air inlet noise reduction section, the fan chamber section and the air outlet noise reduction section in sequence, the air outlet noise reduction section is in butt joint with an exhaust port on the side wall of the substation, the substation is also provided with an electric air inlet shutter, silencers are arranged in the air inlet noise reduction section and the air outlet noise reduction section, an explosion-proof fan is arranged in the fan chamber section, a temperature sensor is arranged in the air outlet section, and the temperature sensor, the explosion-proof fan and the electric air inlet shutter are electrically connected with a control system.
Specifically, the silencer comprises a plurality of parallel silencing plates which are arranged at intervals, and an airflow channel for air to flow is formed between every two adjacent silencing plates.
Specifically, the sound-absorbing board comprises a frame, fixing nets arranged on two sides of the frame and sound-absorbing cotton arranged in the frame and filled between the two fixing nets.
Specifically, the airflow channel is a serpentine channel.
Specifically, a fan chamber section access door is arranged on the fan chamber section.
Specifically, the exhaust port section and the air inlet silencing section, the air inlet silencing section and the fan chamber section and the air outlet silencing section are all fastened and connected through bolts.
Specifically, the air exit sets up the bottom of side wall, electronic air inlet tripe sets up the top of side wall.
Specifically, the electronic air inlet tripe sets up the top of lateral wall.
Specifically, the length of exhaust port section is 1500mm, the length of air inlet noise elimination section is 1500mm, the length of fan room section is 1000mm, the length of air outlet noise elimination section is 1500 mm.
Specifically, a filter screen is arranged at an air inlet of the air exhaust port section.
Compared with the prior art, at least one embodiment of the invention has the following beneficial effects: (1) compared with a commonly-used structure for reducing the noise of the side wall fan, the structure can reduce the noise emitted by the side wall fan, reduce the influence of the side wall fan on the indoor noise of the main transformer, and effectively prevent the noise of the transformer substation from exceeding the standard. (2) The start-up of fan and ventilation cooling and fire control organic linkage can reduce the energy consumption, can play the effect of discharging fume when the emergence accident again. (3) The sectional type design is adopted, so that the installation can be convenient, simple and quick, and a single damaged part can be replaced.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a noise reduction device for a side wall fan of an indoor substation, provided by an embodiment of the invention;
fig. 2 is a schematic cross-sectional view of a noise reduction device of a side wall fan of an indoor substation, provided by an embodiment of the invention;
fig. 3 is a schematic installation diagram of a noise reduction device of a side wall fan of an indoor substation, according to an embodiment of the present invention;
wherein: 1. an air outlet silencing section; 2. an air inlet silencing section; 3. a fan chamber section; 4. an exhaust port section; 5. an explosion-proof fan; 6. a temperature sensor; 7. a filter screen; 8. a fan room section access door; 9. a boom; 10. an air outlet; 11. electric air inlet shutter; 12. a muffler; 121. an acoustic panel; 122. an air flow channel.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
Referring to fig. 1-3, the whole noise reduction device of the indoor substation side wall fan is installed in a substation and comprises an air outlet section 4, an air inlet silencing section 2, a fan chamber section 3 and an air outlet silencing section 1, wherein gas flows through the air outlet section 4, the air inlet silencing section 2, the fan chamber section 3 and the air outlet silencing section 1 in sequence, the air outlet silencing section 1 is in butt joint with an air outlet 10 on the substation side wall, an electric air inlet shutter 11 is further arranged on the substation, silencers 12 are arranged in the air inlet silencing section 2 and the air outlet silencing section 1, an explosion-proof fan 5 is arranged in the fan chamber section 3, a temperature sensor 6 is arranged in the air outlet section 4, and the temperature sensor 6, the explosion-proof fan 5 and the electric air inlet shutter 11 are electrically connected with a control system.
In the noise reduction device with the structure, the electric air inlet shutter 11 is in a normally open state, as shown by an arrow in fig. 3, when the temperature sensor 6 senses that the temperature is more than or equal to 25 ℃, the explosion-proof fan 5 is started to discharge heat from the air outlet to the outside of the transformer substation, and meanwhile, fresh air enters the transformer substation from the electric air inlet shutter 11, so that ventilation and heat dissipation of the transformer substation are realized, when the temperature sensor 6 senses that the temperature exceeds 300 ℃, the control system controls the electric air inlet shutter 11 to be closed, so that air inlet is stopped, the purpose of fire fighting is achieved, and the explosion-proof fan 5 continues to exhaust air to achieve the effect of smoke exhaust; when the temperature sensor 6 senses that the temperature is lower than 25 ℃, the explosion-proof fan 5 is closed.
Compared with a commonly-used structure for reducing the noise of the side wall fan, the noise of the side wall fan for external emission can be reduced, the influence of the side wall fan on the indoor noise of the transformer substation can be reduced, the transformer substation noise is effectively prevented from exceeding the standard, the fan is organically linked with ventilation and heat dissipation and fire fighting, the energy consumption can be reduced, and the smoke exhaust effect can be played when an accident occurs.
Referring to fig. 2, in some embodiments, the muffler 12 includes a plurality of muffling plates 121 arranged in parallel and spaced apart, and an airflow channel 122 for flowing gas is formed between two adjacent muffling plates 121; the sound-absorbing panel 121 includes a frame, fixing nets disposed at both sides of the frame, and sound-absorbing cotton disposed in the frame and filled between the two fixing nets.
In this embodiment, the mufflers 12 are disposed on both sides of the anti-explosion fan 5, and when the airflow passes through the airflow channel 122, the muffling cotton on both sides can perform muffling and denoising on the airflow, so that the noise emitted from the side wall fan can be reduced, the influence of the side wall fan (anti-explosion fan 5) on the indoor noise of the main transformer can be reduced, and the standard exceeding of the transformer substation noise can be effectively prevented. Of course, other types of muffler 12 configurations may be employed.
It can be understood that, in practical application, the airflow channel 122 may be designed as a serpentine channel extending forward in a bending manner, and such a design manner can effectively extend the length of the airflow channel 122, that is, the sound absorption distance is extended, and the sound absorption and noise reduction effects of the sound absorption plate 121 are better.
Referring to fig. 1 and 2, in other embodiments, to facilitate servicing of the explosion proof fan 5 within the fan compartment section 3, a fan compartment access door 8 is provided on the fan compartment section 3. In addition, a filter screen 7 is arranged on the air outlet section 4 for filtering the inlet air.
Specifically, all adopt bolt-up to be connected between air exit section 4 and air inlet noise elimination section 2, air inlet noise elimination section 2 and fan room section 3 and the air-out noise elimination section 1, whole noise reduction device adopts the sectional type design, can convenient and simple swift installation, can damage the part to single again and change.
Referring to fig. 3, in addition, in order to facilitate ventilation and heat dissipation of the transformer substation, the electric air inlet shutter 11 is arranged at the bottom of the side wall, the air outlet is arranged at the top of the side wall, and the noise reduction device is fixedly arranged at the top of the transformer substation through the suspender 9. Specifically, the length of the air outlet section 4 is 1500mm, the length of the air inlet silencing section 2 is 1500mm, the length of the fan chamber section 3 is 1000mm, and the length of the air outlet silencing section 1 is 1500 mm.
Any embodiment disclosed herein above is meant to disclose, unless otherwise indicated, all numerical ranges disclosed as being preferred, and any person skilled in the art would understand that: the preferred ranges are merely those values which are obvious or representative of the technical effect which can be achieved. Since the numerical values are too numerous to be exhaustive, some of the numerical values are disclosed in the present invention to illustrate the technical solutions of the present invention, and the above-mentioned numerical values should not be construed as limiting the scope of the present invention.
Meanwhile, if the invention as described above discloses or relates to parts or structural members fixedly connected to each other, the fixedly connected parts can be understood as follows, unless otherwise stated: a detachable fixed connection (for example using bolts or screws) is also understood as: non-detachable fixed connections (e.g. riveting, welding), but of course, fixed connections to each other may also be replaced by one-piece structures (e.g. manufactured integrally using a casting process) (unless it is obviously impossible to use an integral forming process).
In addition, terms used in any technical solutions disclosed in the present invention to indicate positional relationships or shapes include approximate, similar or approximate states or shapes unless otherwise stated. Any part provided by the invention can be assembled by a plurality of independent components or can be manufactured by an integral forming process.
The above examples are merely illustrative for clearly illustrating the present invention and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. Nor is it intended to be exhaustive of all embodiments. And obvious variations or modifications of the invention may be made without departing from the scope of the invention.
Claims (10)
1. The utility model provides an indoor transformer substation's side wall fan noise reduction device installs in the transformer substation, still be equipped with electronic air inlet tripe (11) on the transformer substation, its characterized in that: the noise reduction device comprises an air exhaust port section (4), an air inlet silencing section (2), a fan chamber section (3) and an air outlet silencing section (1), wherein the air outlet silencing section (1) sequentially flows through the air exhaust port (10) in the side wall of the transformer substation, silencers (12) are arranged in the air inlet silencing section (2) and the air outlet silencing section (1), an anti-explosion fan (5) is arranged in the fan chamber section (3), a temperature sensor (6) is arranged in the air exhaust port section (4), and the temperature sensor (6), the anti-explosion fan (5) and an electric air inlet shutter (11) are electrically connected with a control system.
2. The indoor substation side wall fan noise reduction device of claim 1, characterized in that: the silencer (12) comprises a plurality of parallel silencing plates (121) which are arranged at intervals, and an airflow channel (122) for air to flow is formed between every two adjacent silencing plates (121).
3. The indoor substation side wall fan noise reduction device of claim 2, characterized in that: the sound-absorbing plate (121) comprises a frame, fixing nets arranged on two sides of the frame and sound-absorbing cotton arranged in the frame and filled between the two fixing nets.
4. The indoor substation side wall fan noise reduction device of claim 3, characterized in that: the gas flow channel (122) is a serpentine channel.
5. The indoor substation side wall fan noise reduction device of any one of claims 1-4, characterized in that: and a fan room section access door (8) is arranged on the fan room section (3).
6. The indoor substation side wall fan noise reduction device of any one of claims 1-4, characterized in that: the exhaust port section (4) is connected with the air inlet silencing section (2), the air inlet silencing section (2) is connected with the fan chamber section (3) and the fan chamber section (3) is connected with the air outlet silencing section (1) in a fastening mode through bolts.
7. The indoor substation side wall fan noise reduction device of any one of claims 1-4, characterized in that: the noise reduction device is fixedly installed at the top of the transformer substation through a suspender (9).
8. The indoor substation side wall fan noise reduction device of claim 7, characterized in that: air exit (10) set up the bottom of side wall, electronic air inlet tripe (11) set up the top of side wall.
9. The indoor substation side wall fan noise reduction device of any one of claims 1-4, characterized in that: the length of the air exhaust port section (4) is 1500mm, the length of the air inlet silencing section (2) is 1500mm, the length of the fan chamber section (3) is 1000mm, and the length of the air outlet silencing section (1) is 1500 mm.
10. The indoor substation side wall fan noise reduction device of any one of claims 1-4, characterized in that: and a filter screen (7) is arranged at the air inlet of the air exhaust port section (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110961602.3A CN113606170A (en) | 2021-08-20 | 2021-08-20 | Indoor transformer substation side wall fan noise reduction device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110961602.3A CN113606170A (en) | 2021-08-20 | 2021-08-20 | Indoor transformer substation side wall fan noise reduction device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113606170A true CN113606170A (en) | 2021-11-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110961602.3A Pending CN113606170A (en) | 2021-08-20 | 2021-08-20 | Indoor transformer substation side wall fan noise reduction device |
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| Country | Link |
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| CN (1) | CN113606170A (en) |
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| JP6409109B1 (en) * | 2017-09-20 | 2018-10-17 | 中原大學 | Fan noise control system |
| CN208241142U (en) * | 2018-03-14 | 2018-12-14 | 天津大学建筑设计研究院 | 220kV indoor substation main transformer room with noise reduction and ventilation function |
| CN210422775U (en) * | 2019-08-29 | 2020-04-28 | 重庆隆鑫通航发动机制造有限公司 | Noise processing device with ventilation function |
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2021
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| CN106123241A (en) * | 2016-07-25 | 2016-11-16 | 安徽华电工程咨询设计有限公司 | A kind of city indoor substation transformer chamber ventilation noise reduction system |
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| JP6409109B1 (en) * | 2017-09-20 | 2018-10-17 | 中原大學 | Fan noise control system |
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| CN210422775U (en) * | 2019-08-29 | 2020-04-28 | 重庆隆鑫通航发动机制造有限公司 | Noise processing device with ventilation function |
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